# Operation - Deposit

### Key Steps

1. **Convert Collateral Amount**:
   * Convert the desired amount of collateral into Wei using the `parseEther` function from the `viem` library. This ensures that the amount is in the smallest denomination of ether, which is necessary for precise blockchain transactions.
2. **Record the Deposit**:
   * Once the transaction is confirmed, record the deposit within the protocol by calling the `doDeposit` function. This step updates the user's trove to reflect the added collateral, which could affect their minting capacity and collateral-to-debt ratio.

### Usage

This function is typically used when a user wishes to:

* **Increase Minting Capacity**: By adding more collateral, a user can safely mint more satUSD stablecoins while maintaining a healthy collateral-to-debt ratio.
* **Enhance Financial Security**: More collateral in a trove provides a larger buffer against potential liquidation in case of market volatility.

### Example

```typescript
import { parseEther } from 'viem';
import { protocolConfig, wbtcABI } from 'satoshi-sdk';

async function addCollateral() {
  // Step 1: Convert the amount to add to Wei
  const addedCollAmt = parseEther('0.2');  // Let's add 0.2 BTC worth of WBTC
  const collateral = protocolConfig.COLLATERALS[0];  // WBTC Collateral

  // Step 2: Record the deposit in the protocol
  const receipt = await satoshiClient.Postition.doDeposit({
    collateral,
    addedCollAmt,
  });

  console.log('Deposit successful:', receipt);
}

addCollateral();
```


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